[jira] Created: (STDCXX-333) std::wfilebuf extracts more than 1 character from a 1 byte file

[Mark Brown (JIRA)]

std::wfilebuf extracts more than 1 character from a 1 byte file
---------------------------------------------------------------

                 Key: STDCXX-333
                 URL: https://issues.apache.org/jira/browse/STDCXX-333
             Project: C++ Standard Library
          Issue Type: Bug
          Components: 27. Input/Output
    Affects Versions: 4.1.3
         Environment: gcc 3.2.3 on Linux
            Reporter: Mark Brown


I get an an abort when I run the following program on Linux.

#include <cassert>
#include <fstream>
#include <iostream>

int main ()
{
    {
        std::filebuf fb;
        fb.open ("file", std::ios::out);
        fb.sputc ('a');
    }

    std::wfilebuf fb;
    fb.pubimbue (std::locale ("en_US.UTF-8"));
    fb.open ("file", std::ios::in);

    const int c[] = { fb.sbumpc (), fb.sgetc () };
    std::cout << c [0] << ' ' << c [1] << std::endl;

    assert (L'a' == c [0]);
    assert (std::wfilebuf::traits_type::eof () == c [1]);
}

test: test.cpp:21: int main(): Assertion `std::wfilebuf::traits_type::eof () == 
c [1]' failed.
Aborted


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